Is there a specific period of time, such as one or two years, during which a husband can patiently endure his wife's rebellion—where she prevents him from approaching her and demands a divorce, invoking the Prophet's (PBUH) prestige—in the hope that she will return and abandon her rebelliousness?

The Holy Quran clarified the cure for nushuz in Surat An-Nisa (verse 34) through admonition, abandoning in bed, and striking. There is no specific time period during which the husband must endure his wife's nushuz. He may divorce her whenever he perceives nushuz, or after taking the steps mentioned in the verse, or he may keep her until she ransoms herself with money, or he may be patient with her.